Math 90 Lecture Notes Chapter 1
... B. The law of opposites: Any pair of opposite numbers, additive inverses, always adds up to what number? _________________ C. Let’s think about a new way of thinking about subtraction. Some simple examples will help us here: 1. You have $700 in your checking account and write a check for $200. How m ...
... B. The law of opposites: Any pair of opposite numbers, additive inverses, always adds up to what number? _________________ C. Let’s think about a new way of thinking about subtraction. Some simple examples will help us here: 1. You have $700 in your checking account and write a check for $200. How m ...
Problem of the Month
... Often, we would all the rst term in the sequen e a and the multiplying fa tor r, whi h gives the sequen e a, ar, ar2 , ar3 , . . . . (You may noti e that I've deliberately avoided the phrase \ ommon ratio" { stay tuned!) Let's use this version of the de nition to solve the rst problem. Solution t ...
... Often, we would all the rst term in the sequen e a and the multiplying fa tor r, whi h gives the sequen e a, ar, ar2 , ar3 , . . . . (You may noti e that I've deliberately avoided the phrase \ ommon ratio" { stay tuned!) Let's use this version of the de nition to solve the rst problem. Solution t ...
Section 1.5
... Section 1.5 Multiplication with Whole Numbers 1. Definition of Multiplication and Multiplication Notation: Multiplication is repeated addition. Thus, 5 times 8 means 8 + 8 + 8 + 8 + 8. To denote multiplication, you may use a dot, parenthesis or ‘x’. Since we often use ‘x’ for a variable in algebra, ...
... Section 1.5 Multiplication with Whole Numbers 1. Definition of Multiplication and Multiplication Notation: Multiplication is repeated addition. Thus, 5 times 8 means 8 + 8 + 8 + 8 + 8. To denote multiplication, you may use a dot, parenthesis or ‘x’. Since we often use ‘x’ for a variable in algebra, ...
Word - NZmaths
... Hold up near doubles – like double 7 plus 2 or double 9 minus 1 Hold up eight minus one 7 plus 5 Hold up a number 100 more than 2345 200 more than 2345 Hold up a number greater than … Less than … Hold up a factor of six a prime number A multiple of 3 (or 4, 11, 9) If 5 4 = 20, what is 6 4? Or 4 ...
... Hold up near doubles – like double 7 plus 2 or double 9 minus 1 Hold up eight minus one 7 plus 5 Hold up a number 100 more than 2345 200 more than 2345 Hold up a number greater than … Less than … Hold up a factor of six a prime number A multiple of 3 (or 4, 11, 9) If 5 4 = 20, what is 6 4? Or 4 ...
Quarter 2 Math Study Guide 2014 You have learned A LOT this
... Quarter 2 Math Study Guide 2014 You have learned A LOT this quarter! This study guide will help you remember what we did so you can be ready for the test on ________________________ ! ...
... Quarter 2 Math Study Guide 2014 You have learned A LOT this quarter! This study guide will help you remember what we did so you can be ready for the test on ________________________ ! ...
Solution
... (d) Choose the position for E, then order 2 of the remaining 9 people for the other two positions. Thus, there are 3 · P9,2 = 216 possibilities. (e) There are again two cases: F serves as president, or F does not serve at all. In the first case, there are 1 · P9,2 possibilities, while in the second ...
... (d) Choose the position for E, then order 2 of the remaining 9 people for the other two positions. Thus, there are 3 · P9,2 = 216 possibilities. (e) There are again two cases: F serves as president, or F does not serve at all. In the first case, there are 1 · P9,2 possibilities, while in the second ...
review for Exam #1: 5.1-7.2
... • 1. Passwords can be comprised of letters or digits. (uses sum, multiplication, complement rules) • How many of them are: • a) 4-6 characters • b) 4-5 characters, with exactly 1 digit • c) 4-5 characters, with exactly 2 digits • d) 4-5 characters, with at least 2 digits ...
... • 1. Passwords can be comprised of letters or digits. (uses sum, multiplication, complement rules) • How many of them are: • a) 4-6 characters • b) 4-5 characters, with exactly 1 digit • c) 4-5 characters, with exactly 2 digits • d) 4-5 characters, with at least 2 digits ...
Notes for Chapter 5
... Example: 48 x 6 y 2 40 x 4 y 3 becomes 8 x 4 y 2 (6 x 2 5 y) Trinomial factoring (leading coefficient of 1, x 2 bx c ) Find 2 factors of ‘c’ whose sum is ‘b’ Calculator help c y1 In the tables, find ‘b’ in y 2 . Read the factors in the remaining columns. x y 2 x y1 Example: x 2 7 x ...
... Example: 48 x 6 y 2 40 x 4 y 3 becomes 8 x 4 y 2 (6 x 2 5 y) Trinomial factoring (leading coefficient of 1, x 2 bx c ) Find 2 factors of ‘c’ whose sum is ‘b’ Calculator help c y1 In the tables, find ‘b’ in y 2 . Read the factors in the remaining columns. x y 2 x y1 Example: x 2 7 x ...
Elementary arithmetic
Elementary arithmetic is the simplified portion of arithmetic that includes the operations of addition, subtraction, multiplication, and division. It should not be confused with elementary function arithmetic.Elementary arithmetic starts with the natural numbers and the written symbols (digits) that represent them. The process for combining a pair of these numbers with the four basic operations traditionally relies on memorized results for small values of numbers, including the contents of a multiplication table to assist with multiplication and division.Elementary arithmetic also includes fractions and negative numbers, which can be represented on a number line.